landwire

<p>Responsive Block Control adds responsive toggles to a “Visibility” panel of the block editor, to show or hide blocks according to screen width.</p>
<h3>Security</h3>
<p><strong>Version 1.3.1 resolves a stored cross‑site scripting (XSS) vulnerability (CVE‑2025‑62135) affecting earlier versions (<= 1.2.9).</strong><br />
Users with contributor access or higher should update immediately.</p>
<p>If you discover a security vulnerability, please report it responsibly to: security@saschapaukner.de</p>
<h4>Limitations</h4>
<p>Does not work with the Classic Block, Widget Block or Widget Area Block [‘core/freeform’, ‘core/legacy-widget’, ‘core/widget-area’], as the those blocks do not support block attributes. Does also not work with the HTML Block [‘core/html’] inside the Widget Screen, as this one also does not support block attributes there.</p>
<h3>Configuration</h3>
<h4>Override existing breakpoints</h4>
<pre><code>function override_responsive_block_control_breakpoints($break_points) {
     $break_points['base'] = 0;
     $break_points['mobile'] = 400;
     $break_points['tablet'] = 800;
     $break_points['desktop'] = 1000;
     $break_points['wide'] = 1600;

     return $break_points;
 }

 add_filter('responsive_block_control_breakpoints', 'override_responsive_block_control_breakpoints');
</code></pre>
<h4>Provide custom CSS</h4>
<p>You can provide your own CSS rules per breakpoint using the new filter responsive_block_control_custom_css_rules.</p>
<pre><code>add_filter('responsive_block_control_custom_css_rules', function($rules) {
    return [
        'mobile'  => 'display: none !important;',
        'tablet'  => 'display: none !important;',
        'desktop' => 'display: none !important;',
        'wide'    => 'display: none !important;',
    ];
});
</code></pre>
<h4>Stop css output completely</h4>
<pre><code> function override_responsive_block_control_add_css() {
      return false;
  }
  add_filter('responsive_block_control_breakpoints', 'override_responsive_block_control_add_css');
</code></pre>


Responsive Block Control – Hide blocks based on display width

This plugin does exactly what I need, without adding any extra bloat. Thanks!

Great simple plugin!

Responsive Block Control adds responsive toggles to a "Visibility" panel of the block editor, to show or hide blocks according to screen width.

Rufnex

<p>FullscreenWidth is a very simple Plugin, that adds a input field to change the editarea width, next to the toolbar buttons at the fullscreen view.</p>
<p>The standard width of the WordPress editarea is 647px, for some reasons this was to small for me. FullscreenWidth let you change the desired width on the fly by simply type widith in the input box. Afer you click elsewhere on the screen the width of the editarea is changed.</p>
<p>Note: The width is set as long you dont reload the browser.</p>


FullscreenWidth

FullscreenWidth adds a input field to change the editarea width, next to the toolbar buttons at the fullscreen view.

Responsive Block Control – Hide blocks based on display width vs FullscreenWidth